решите уравнение -8(3+х)+х=4 7(-5+3х)+4х=9 6-2х=3х-10 4х+10=-10. Created by mahovitskayaso. algebra-ru

решите уравнение -8(3+х)+х=4 7(-5+3х)+4х=9 6-2х=3х-10 4х+10=-10...

ritanastiacom 7(-5+3x)+4x=9
-35+21x+4x=9
-35+25x=9
25x=44
x=44/25
x=1,76

2 votes Thanks 1

НастёнкаBel -8(3+x)+x=4; -24-8x+x=4; -24-7x=4; -7x=-28; x=4
7(-5+3x)+4x=9; -35+21x+4x=9; -35+25x=9; 25x=44; x=1,76
6-2x=3x-10; -2x-3x=-6-10; -5x=-16; x=3,2
4x+10=-10; 4x=-10-10; 4x=-20; x=-5

4 votes Thanks 2

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